I was at my LBS when when of the local junkies brought in his "bike". Since it was clearly stolen and the frame was entirely too small, the guy needed a longer seatpost. He went to Home Depot (or some similar home repair place) and bought (read: stole) some pipe. Despite the post being too large for the frame, he muscled it in somehow so the frame was all fanning out around it. Best part is he rides in with like 2 ft. of "seatpost" poking out of this tiny frame, but no seat on it. It looked brutal.